The present invention relates to a binder composition, in particular for wooden composite boards, obtainable from a binder composition, in particular for wooden composite boards obtainable from at least one polymer adhesive, at least one polyalcohol compound, at least one compound of the general formula (I) RaSiX(4−a)  (I), or the general formula (II) ObXc(OH)dReSiO(4-b-c-d-e)/2  (II). The present invention relates also to a wooden composite board containing said binder composition.